Window regulator



`June '16,y 1931. H. c. BOR-rel.

WINDOW REGULATOR Filed Nov. 23, 1925 Patented June 16, 1931 UNITED .s'rnrrs PATENT; OFFICE HOWARD C. BOR/TEL, OF TOLEDO, OHIO, ASSIGNOR,'BY MESNE ASSIGNMENTSTO THB DURA COMPANY, OF TOLEDO, OHIO,'A

CORPORATION OF OHIO WINDOW REGULATOR Application illed November 23,1925n Serial No. 70,858.

The invention relates to window re la: tors and has for its main object the provision ci arms for engaging the closure or window at spaced points and exerting substantially equal effort upon the closure to operate the same. Another object is to provide `a unit window regulator in which the one mounting plate carries all'of the elements. A further object is the provision of independent counterbalancing springs for the lifter arms. Vith these as well as other objects in view the invention resides in the novel features of construction and combinations and arrangements of parts as more fully hereinafter set forth.

In the drawings Figure l is an interior side elevation, partly broken away, of a motor vehicle door having applied thereto a window regulator embodyinv my invention;

igures 2 and 3 are respectively cross sections on the lines 2-2 and 3-5-3 of lFigure 1;

Figure 4 is a reary view of a portion of the regulator.

As shown in the present instance, my invention is applied to the door 1 of a motor vehicle having the opening 2 in its upper portion and the chamber 3 in its lower portion for receiving the closure or window 4: when lowered from a position closing the opening.

5 is the mountlng plate ofthe window regulator located below the opening 2 and pro-y,y vided at its lower corners with the laterallyy offset portions 6, which are in the present instance outwardly offset. 7 are litter arms suitably connected at their outer ends to the closure 4 and pivotally mounted near their inner ends upon the mounting plate 5. These arms extend parallel to the mounting plate and lie adjacent to the outer surfaces of its otlset portions and are connected thereto by means ofthe pivots 8. 9 are convolute counterbalancing springs located at the inner sides ofthe offset portions and in the recesses formed thereby, one end of eachof these springs being connected to its pivot 8 and the outer end being hooked around the transverse inwardly extending ear l0 at the lower end of the mounting plato and near itsI corner.

For actuatingthe lifter arms 7 so that they will exert substantially equal eort ui n the closure'4 I have provided the equalizer or evener 11 which is located between the oiset corner portions 6 ofthe mounting plate and is pivotally connected at its ends to the links 12which in turn are pivota-lly7 connected to the inner ends of the lifter arms. The evener is pivotally connected at its middle to the nut l13 which threadedly engages the vertical screw 14, this screw being Journaled at its lower end upon the transverse inwardly extending fear 15 of the mounting n late 5 and being -journaled at its upper en in the gear housing 16, which is secured to the outer side of themounting plate. 17 is the operating h andleand 18 is suitable gearing within the gear housing 16 for rotating the screw i4- from the handle.

From the above description it will be readily seen that I have provided a simple compact construction of Window regulator which is built up in tandem fashion and is particularly adapted for use with heavy closures or windows such as used in busses.

What I claim as my invention is: Y

l. In a window regulator, the combination with a closure, of a plurality of pivotal arms for operating said closure and actuating means for said arms including a pivotalequalizer and connections between said equalizer and arms.

2. In a win dow regulatr, the combination with a closure, of a plurality of pivotaly arms for operating said closure, a member reciprocable in the direction of travel of said fclosure, and means connected to said reciprocable member andto each of said arms for equalizing the effort exerted upon said closure by said arms. i

3. In a window regulator, the combination with a vertically movable closure, of a plurality of pivotal arms engaging said closure at spaced points, and actuating means for said arms including a vertically extending screw, a nut engaging said screw, an equalizcr pivotally connected to said nut and links ist pivotally connected to said equalizer andV HI'ITIS.

with a closure, of a mounting plate having a laterally offset portion, an erm for operating said closure, said arm being located at the outer side of said ofset portion,` apivot for said arm extending through said offset portion and a convolute spring located at the inner side of said offset portion and in the recess formed thereby, said convolute spring beinlr connected to said arm to eifect a counterbalaancing eiect thereupon.

5. In a, window regulator, the combination i with a closure, of a plurality' of ar'rns for operating said closure, and actuating mechanism for said arms, including means for equnlizing the effort exerted upon said closure by said arms. 6. In a window regulator, the combinetion with a closure, of a plurality of arms connected to said closure at spaced points for operating the same, and actuating meehanism for said arms, including means for equalizing the effort exerted upon said closure by said arms.

` 7. In a window regulator, the combination with a closure, of a plurality of pivotal arms having one end operatively engaged with said closure, a pivotal equalizer connected to theopposite ends of seid arms, and means associated with said equalizer for actuating said arms.

In testimony whereof I aix my signature.

HOWARD C. BORTEL. 

